Mountain hardwear Rook -9C down sleeping bag. Just a shade over a kilo. I can't really see the difference between this one and the Phantom flame which we have, which I have been really pleased with (but is sold out now).

Lidl have down jackets for £25 just now. Not big thick chunky Everest ones by any means, but quite good for a chill evening around camp for a minimal weight penalty. Also a good way of boosting your sleeping bag in winter.